CN115020012B - High-torsion-resistance tensile-drag cable for wind power generation - Google Patents
High-torsion-resistance tensile-drag cable for wind power generation Download PDFInfo
- Publication number
- CN115020012B CN115020012B CN202210747390.3A CN202210747390A CN115020012B CN 115020012 B CN115020012 B CN 115020012B CN 202210747390 A CN202210747390 A CN 202210747390A CN 115020012 B CN115020012 B CN 115020012B
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- CN
- China
- Prior art keywords
- core
- wire
- sleeve
- protection sleeve
- tensile
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000010248 power generation Methods 0.000 title claims abstract description 14
- 229920001971 elastomer Polymers 0.000 claims abstract description 42
- 239000004020 conductor Substances 0.000 claims abstract description 39
- 238000009413 insulation Methods 0.000 claims abstract description 37
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 23
- 239000000919 ceramic Substances 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 8
- 229920002379 silicone rubber Polymers 0.000 claims description 8
- 229920001187 thermosetting polymer Polymers 0.000 claims description 8
- 229920000271 Kevlar® Polymers 0.000 claims description 7
- 239000000835 fiber Substances 0.000 claims description 7
- 239000004761 kevlar Substances 0.000 claims description 7
- 239000004760 aramid Substances 0.000 claims description 6
- 229920003235 aromatic polyamide Polymers 0.000 claims description 6
- 239000004709 Chlorinated polyethylene Substances 0.000 claims description 5
- 229920002943 EPDM rubber Polymers 0.000 claims description 5
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 description 15
- 238000004804 winding Methods 0.000 description 6
- 229920006231 aramid fiber Polymers 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Ropes Or Cables (AREA)
- Insulated Conductors (AREA)
Abstract
The invention discloses a cable for wind power generation with high torsion resistance, tensile strength and wrapping tape, which comprises a wire core, an outer rubber insulation protection sleeve, a tensile core and a wrapping tape, wherein the wire core comprises a reinforcing core, conductors, an inner rubber insulation protection sleeve and a conductive sleeve, the conductors are mutually twisted, the reinforcing core is filled in the middle of the conductors, the inner rubber insulation protection sleeve is extruded and wrapped outside the reinforcing core twisted with the conductors, the conductive sleeve is wrapped and wrapped outside the inner rubber insulation protection sleeve, the wire cores are mutually twisted and form a wire harness with a hollow gap, the tensile core is filled in the hollow gap, the wrapping tape is wrapped outside the wire harness, the outer rubber insulation protection sleeve is extruded and wrapped outside the wrapping tape, the cable has high torsion resistance and tensile strength, high overall softness and stable structure, and the insulation wire core is not displaced and deformed, so that the service time of the cable can be effectively prolonged, and the popularization and the application are facilitated.
Description
Technical Field
The invention relates to the technical field of cables, in particular to the technical field of cables for wind power generation with high torsion resistance and tensile resistance.
Background
Wind power cables are commonly used in the connection of turbines and towers in wind power plants or similar applications. Because wind power generator equipment is usually in the field work of wind direction changeable and the abominable environment such as seaside, beach and grassland, lead to wind power generation cable can be along with the fan constantly rotatory, remove, warp and pull, and then lead to its inside insulating sinle silk to take place the displacement, form the swell, even fracture.
In addition, since the cable for wind power generation is generally composed of a plurality of main wire cores and auxiliary wire cores (the number of the main wire cores is generally 3, the number of the auxiliary wire cores is generally 1, and the auxiliary wire cores are used for grounding), and the wire diameter of the auxiliary wire cores is relatively small (the cross-sectional area of the auxiliary wire cores is generally about 30% smaller than that of the main wire cores), when the whole cable is twisted and pulled, the auxiliary wire cores are broken at first, and then the scrapping of the whole cable is caused, so that the service life of the cable is influenced, and the problem needs to be solved.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a cable for wind power generation with high torsion resistance and tensile drag resistance, which has high torsion resistance and tensile drag resistance, high overall softness, stable structure and no displacement and deformation of an insulating wire core, can effectively increase the service time of the cable, and is beneficial to popularization and application.
In order to achieve the above purpose, the invention provides a cable for wind power generation with high torsion resistance and tensile resistance, which comprises a wire core, an outer rubber insulation protective sleeve, a tensile core and a wrapping belt, wherein the wire core comprises a reinforcing core, conductors, an inner rubber insulation protective sleeve and a conductive sleeve, the conductors are mutually twisted, the reinforcing core is filled in the middle of the conductors, the inner rubber insulation protective sleeve is extruded and wrapped outside the reinforcing core twisted with the conductors, the conductive sleeve is wound and wrapped outside the inner rubber insulation protective sleeve, the wire cores are mutually twisted and form a wire harness with a hollow gap, the tensile core is filled in the hollow gap, the wrapping belt is wound and wrapped outside the wire harness, and the outer rubber insulation protective sleeve is extruded and wrapped outside the wrapping belt.
Preferably, the reinforcing core is a kevlar fiber rope, and the diameter of the kevlar fiber rope is 1-5 mm.
Preferably, the conductor is a 6-type soft structure conductor, the conductor is formed by twisting a plurality of conductor tows, and the tow-to-tow pitch ratio is not more than 16.
Preferably, the number of conductors stranded outside the same reinforcing core is at least 6, and the strand pitch ratio of each of the conductors outside the reinforcing core is not more than 9.
Preferably, the inner rubber insulation protection sleeve is a thermosetting ethylene propylene diene monomer insulation rubber protection sleeve.
Preferably, the conductive sleeve is an oxygen-free copper wire sparse winding sleeve, and the diameter of the oxygen-free copper wire sparse winding sleeve is 0.1-0.3 mm.
Preferably, the outer rubber insulation protection sleeve is a thermosetting chlorinated polyethylene insulation rubber protection sleeve.
Preferably, the tensile core is an aramid core, the aramid core is formed by twisting a plurality of aramid yarns, and the yarn bundle pitch ratio is not more than 10.
Preferably, the wrapping belt is a ceramic silicon rubber composite belt, and the thickness of the ceramic silicon rubber composite belt is 0.2-0.8 mm.
The invention has the beneficial effects that:
according to the invention, the wire core is formed by arranging the reinforcing core, the conductor, the inner rubber insulation protective sleeve and the conductive sleeve, the conductive sleeve wrapped outside the inner rubber insulation protective sleeve can be directly utilized to replace the existing auxiliary wire core and play a role of grounding, so that the wire core can bear the functions of the main wire core and the auxiliary wire core at the same time, the number of the bus cores is reduced, the diameter of a cable is further reduced, the bending radius of the cable is reduced, the twisting angle of the cable is increased, and the twisting performance of the cable is improved;
by adopting the Kevlar fiber rope as the reinforcing core, the cable can bear the twisting force and the tensile force of 800Kg when the diameter is 3mm, thereby not only improving the twisting resistance and the tensile resistance of the whole conductor, but also guaranteeing the softness of the conductor and increasing the structural stability and reliability;
by adopting the thermosetting ethylene-propylene-diene monomer insulating rubber protective sleeve as the inner rubber insulating protective sleeve, the cable flexibility can be improved by utilizing the characteristics of excellent electrical insulation performance, higher elongation and good softness of the ethylene-propylene-diene monomer insulating rubber;
by adopting the oxygen-free copper wire sparse winding sleeve as the conductive sleeve, the wire core can be grounded, the shielding effect can be achieved to a certain extent, the interference of an electromagnetic field on the cable is prevented, and meanwhile, the sparse winding mode can also ensure the softness of the cable;
the plurality of wire cores are arranged in parallel to form the wire harness with the hollow gap, and the hollow gap is filled with the aramid fiber core which is impact-resistant, strong in tensile capability and good in softness as the tensile core, so that the cable is stable in structure, compact and solid in cable core, and the insulating wire cores are prevented from displacement deformation when the cable is twisted and pulled, and the tensile property of the whole cable is effectively improved;
the ceramic silicon rubber composite belt is wound outside the wire harness and is used as a wrapping belt, so that the ceramic silicon rubber composite belt is formed into a ceramic shell which is not easy to fall off under the flame or flameless condition and is tightly wrapped on the wire harness, flame or high Wen Touru is effectively isolated, and the effects of flame retardance and fire prevention are achieved;
the thermosetting chlorinated polyethylene insulating rubber protective sleeve is extruded and coated outside the wrapping tape to serve as an outer rubber insulating protective sleeve, so that the characteristics of flame retardance, weather resistance and abrasion resistance of the chlorinated polyethylene insulating rubber can be utilized to provide flame retardance, weather resistance and abrasion resistance protection for the cable.
The features and advantages of the present invention will be described in detail by way of example with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic cross-sectional view of a high twist resistant tensile strain wind power generation cable according to the present invention;
fig. 2 is a schematic cross-sectional view of a core of a cable for wind power generation with high torsion resistance and tensile strain.
In the figure: 1-wire core, 11-reinforced core, 12-conductor, 13-inner rubber insulation protective sleeve, 14-conductive sleeve, 2-outer rubber insulation protective sleeve, 3-tensile core and 4-wrapping tape.
Detailed Description
Referring to fig. 1 and 2, the cable for wind power generation with high torsion resistance and tensile strength comprises a cable core 1, an outer rubber insulation protection sleeve 2, a tensile core 3 and a wrapping belt 4, wherein the cable core 1 comprises a reinforcing core 11, conductors 12, an inner rubber insulation protection sleeve 13 and a conductive sleeve 14, a plurality of the conductors 12 are mutually twisted, the reinforcing core 11 is filled in the middle of the conductors, the inner rubber insulation protection sleeve 13 is wrapped outside the reinforcing core 11 twisted with a plurality of the conductors 12 in an extrusion mode, the conductive sleeve 14 is wrapped outside the inner rubber insulation protection sleeve 13, a plurality of the cable cores 1 are twisted with each other and form a wire harness with a hollow gap, the tensile core 3 is filled in the hollow gap, the wrapping belt 4 is wrapped outside the wire harness in a wrapping mode, and the outer rubber insulation protection sleeve 2 is wrapped outside the wrapping belt 4 in an extrusion mode. The number of the wire cores 1 is 3, and the conductive sleeves 14 of the wire cores 1 are grounded.
The reinforcing core 11 is a Kevlar fiber rope, and the diameter of the Kevlar fiber rope is 3mm.
The conductor 12 is a 6-type soft structure conductor, the conductor 12 is formed by twisting a plurality of conductor tows, and the pitch ratio of the tows is not more than 16. Wherein, the wire harness direction of each conductor silk bundle is right.
The number of the conductors 12 twisted outside the same reinforcing core 11 is at least 6, and the ratio of the twist pitch of each of the conductors 12 outside the reinforcing core 11 is not more than 9.
The inner rubber insulation protective sleeve 13 is a thermosetting ethylene propylene diene monomer insulation rubber protective sleeve.
The conductive sleeve 14 is an oxygen-free copper wire sparse winding sleeve, and the diameter of the oxygen-free copper wire sparse winding sleeve is 0.2mm.
The outer rubber insulation protection sleeve 2 is a thermosetting chlorinated polyethylene insulation rubber protection sleeve.
The tensile core 3 is an aramid fiber core, the aramid fiber core is formed by twisting a plurality of aramid fiber yarns, and the bundle yarn pitch ratio is not more than 10.
The wrapping belt 4 is a ceramic silicon rubber composite belt, and the thickness of the ceramic silicon rubber composite belt is 0.5mm.
The above embodiments are illustrative of the present invention, and not limiting, and any simple modifications of the present invention fall within the scope of the present invention.
Claims (3)
1. A cable for wind power generation with high torsion resistance and tensile resistance is characterized in that: comprises a wire core (1), an outer rubber insulation protection sleeve (2), a tensile core (3) and a wrapping belt (4), wherein the wire core (1) comprises a reinforcing core (11), a conductor (12), an inner rubber insulation protection sleeve (13) and a conductive sleeve (14), a plurality of the conductors (12) are mutually twisted and the middle of the conductor is filled with the reinforcing core (11), the inner rubber insulation protection sleeve (13) is extruded and wrapped outside the reinforcing core (11) which is twisted with a plurality of the conductors (12), the conductive sleeve (14) is wrapped and wrapped outside the inner rubber insulation protection sleeve (13), a plurality of the wire cores (1) are mutually twisted and form a wire harness with a hollow gap, the tensile core (3) is filled in the hollow gap, the wrapping belt (4) is wrapped and wrapped outside the wire harness, the outer rubber insulation protection sleeve (2) is extruded and coated outside the wrapping belt (4), the reinforcing core (11) is a Kevlar fiber rope, the diameter of the Kevlar fiber rope is 1-5 mm, the inner rubber insulation protection sleeve (13) is a thermosetting ethylene propylene diene monomer insulation rubber protection sleeve, the outer rubber insulation protection sleeve (2) is a thermosetting chlorinated polyethylene insulation rubber protection sleeve, the conductive sleeve (14) is an oxygen-free copper wire sparse wrapping sleeve, the diameter of an oxygen-free copper wire of the oxygen-free copper wire sparse wrapping sleeve is 0.1mm, the tensile core (3) is an aramid core, the aramid core is formed by twisting a plurality of aramid yarn bundles, and the bundle wire pitch ratio is not more than 10, the wrapping belt (4) is a ceramic silicon rubber composite belt, and the thickness of the ceramic silicon rubber composite belt is 0.2-0.8 mm.
2. A cable for wind power generation having high resistance to twisting and tensile pulling as defined in claim 1, wherein: the conductor (12) is a 6-type soft structure conductor, the conductor (12) is formed by twisting a plurality of conductor tows, and the tow-to-wire pitch ratio is not more than 16.
3. A cable for wind power generation having high resistance to twisting and tensile pulling as defined in claim 1, wherein: the number of conductors (12) stranded outside the same reinforcing core (11) is at least 6, and the strand pitch ratio of each of the conductors (12) outside the reinforcing core (11) is not more than 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210747390.3A CN115020012B (en) | 2022-06-28 | 2022-06-28 | High-torsion-resistance tensile-drag cable for wind power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210747390.3A CN115020012B (en) | 2022-06-28 | 2022-06-28 | High-torsion-resistance tensile-drag cable for wind power generation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115020012A CN115020012A (en) | 2022-09-06 |
| CN115020012B true CN115020012B (en) | 2024-03-15 |
Family
ID=83076321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210747390.3A Active CN115020012B (en) | 2022-06-28 | 2022-06-28 | High-torsion-resistance tensile-drag cable for wind power generation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115020012B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201859668U (en) * | 2010-06-23 | 2011-06-08 | 特变电工(德阳)电缆股份有限公司 | Composite intelligent cable |
| CN202217525U (en) * | 2011-09-07 | 2012-05-09 | 广州裕泽线缆有限公司 | Flexure resisting rubber jacketed flexible cable used in lifter |
| CN105788716A (en) * | 2016-03-08 | 2016-07-20 | 江苏泰祥电线电缆有限公司 | High-twist resistant flexible cable with rated voltage of 0.6-1KV for wind power generation and fabrication method of cable |
| CN205692590U (en) * | 2016-05-23 | 2016-11-16 | 安徽太平洋电缆股份有限公司 | Tensile type wind generator system flexible cable |
| CN216119586U (en) * | 2021-08-23 | 2022-03-22 | 江苏东强股份有限公司 | High-tensile anti-torsion wind power cable |
| CN216719546U (en) * | 2021-11-27 | 2022-06-10 | 尚纬股份有限公司 | Reinforced coal mining machine cable |
-
2022
- 2022-06-28 CN CN202210747390.3A patent/CN115020012B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201859668U (en) * | 2010-06-23 | 2011-06-08 | 特变电工(德阳)电缆股份有限公司 | Composite intelligent cable |
| CN202217525U (en) * | 2011-09-07 | 2012-05-09 | 广州裕泽线缆有限公司 | Flexure resisting rubber jacketed flexible cable used in lifter |
| CN105788716A (en) * | 2016-03-08 | 2016-07-20 | 江苏泰祥电线电缆有限公司 | High-twist resistant flexible cable with rated voltage of 0.6-1KV for wind power generation and fabrication method of cable |
| CN205692590U (en) * | 2016-05-23 | 2016-11-16 | 安徽太平洋电缆股份有限公司 | Tensile type wind generator system flexible cable |
| CN216119586U (en) * | 2021-08-23 | 2022-03-22 | 江苏东强股份有限公司 | High-tensile anti-torsion wind power cable |
| CN216719546U (en) * | 2021-11-27 | 2022-06-10 | 尚纬股份有限公司 | Reinforced coal mining machine cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115020012A (en) | 2022-09-06 |
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